package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.gulimall.auth.vo.MemberRespVo;
import com.atguigu.gulimall.auth.vo.SocialUser;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录请求
 */
public class OAuth2Controller {

    @Autowired
    MemberFeignService  memberFeignService;

    /**
     * 社交登录成功回调
     * @param code
     * @return
     * @throws Exception
     */
    @GetMapping("oauth2.0/weibo/success")
    public String weibo(@RequestParam String code) throws Exception {
        Map<String, String> map = new HashMap<>();

        map.put("cliend_id","2636917288");
        map.put("client_secret","6a263e9284c6c1a74a62eadacc11b6e2");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://gulimall.com/oauth2.0/weibo/success");
        map.put("code",code);
        //1、根据code换区AccessToken
        HttpResponse response = HttpUtils.doPost("api.weibo.com", "/oauth2/access_token", "post", null, null, map);

        //2、处理
        if(response.getStatusLine().getStatusCode() == 200){
            //获取到了 accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);

            //知道当前是哪个社交用户
            //1、当前用户如果是第一次进入网站，自动注册进来（为当前社交用户生成一个会员信息账号，以后只要是这个社交账号就对应指定的会员）
            //登录或者注册这个社交账户
            R oauthlogin = memberFeignService.oauthlogin(socialUser);
            if(oauthlogin.getCode() == 0){
                MemberRespVo data = oauthlogin.getData("data", new TypeReference<MemberRespVo>() {});
                System.out.println("登录成功 用户信息： "+data);
                //2、登录成功就跳回首页
                return "redirect:http://gulimall.com";
            }else{
                //失败
                return "redirect:http://auth.gulimall.com/login.html";
            }
        }else {
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}
